Thunderbolt 5 Revealed! 12GB/s… But Should You Care?

Thunderbolt 5: The Future of Connectivity or an Overkill for Most Users?

As Thunderbolt 5 prepares to make its debut in 2024, many consumers are left wondering if this new technology is a significant advancement they should be anticipating or just another buzz that will fade away. This doubt intensifies especially when considering the lukewarm user engagement with Thunderbolt 4. Many attributed the tepid reception to its speed similarities with Thunderbolt 3, and the pandemic-induced hardware shortages further hampered the availability of Thunderbolt 4-enabled devices. However, Thunderbolt 5 promises enhanced speeds and more power, but do users genuinely need it?

Thunderbolt 5 Highlights:

• Two times the total bi-directional bandwidth; Bandwidth Boost provides up to three times the throughput for video-intensive usage, up to 120 Gbps.
• Double the PCI Express data throughput for faster storage and external graphics.
• Built on industry standards including USB4 V2, DisplayPort 2.1 and PCI Express Gen 4; fully compatible with previous versions.
• Double the bandwidth of Thunderbolt Networking for high-speed PC-to-PC connections.
• Utilizes a new signaling technology, PAM-3, to deliver these significant increases in performance with today’s printed circuit boards, connectors and passive cables up to 1 meter.

All About the Speed: Thunderbolt 5’s Promise Thunderbolt 5, Intel’s forthcoming connection technology, integrates the foundation of USB 4 version 2, making it possible to transfer data at a staggering 80Gbps—twice as fast as Thunderbolt 4. For gamers and creative professionals, this means the ability to connect high-resolution 8K monitors to their computing devices. Notably, Thunderbolt 5 can boost speeds up to 120Gbps for PCs-to-peripherals connections, albeit halving the return speed to 40Gbps.

Despite the impressive speed boost, average laptop users may not find a compelling use case for such advanced speeds, even if it can support larger monitors and high-end storage systems. But for those involved in intensive graphic design, gaming, and other high-demand activities, this speed bump could prove invaluable.

A Deep Dive: Thunderbolt 4 vs. Thunderbolt 5 The preceding Thunderbolt 4 became a staple for devices, especially in Intel and Apple laptops, since its introduction. However, Thunderbolt 5 is set to dethrone its predecessor with several significant upgrades:

• Bandwidth Boost: With up to 120Gbps in boosted mode, Thunderbolt 5 offers up to three times more bandwidth than Thunderbolt 4. This advancement means users can connect to multiple 8K HDR monitors or achieve gaming experiences with up to 580Hz displays.
• PCIe SSD Speeds: Made possible with Thunderbolt 5 support, via docking stations, TB5 allows plenty of bandwidth to play with! In preview testing on the official Intel YouTube channel (HERE) we saw a singe 8GB test file on a GEN4 SSD via a TB5 docking station hit  6,223MB/s and 5,383MB/s Sequential Read/Write in CrystalDiskMark via an 8GB test file: 

   

• Display Streams: Thanks to increased bandwidth, Thunderbolt 5 can stream to three 4K monitors simultaneously at 144Hz.
• Charging Power: Another notable feature is the support for up to 240W charging. This introduces the potential for gaming laptops to solely rely on a Thunderbolt 5 port for charging.
• Device Integration: While Thunderbolt 5 might sound exciting, it’s expected to feature primarily in high-end creative or gaming devices. This suggests that Thunderbolt 4 will remain a standard feature in many devices for the foreseeable future. Though Thunderbolt technology has been presented as royalty-free software, suggesting its potential adoption in devices like AMD or Snapdragon, it’s expected that Intel and Apple devices will continue to dominate its use.

The imminent arrival of Thunderbolt 5 brings with it the promise of faster speeds, increased power, and better compatibility for high-end users. Yet, considering the history of its predecessor, one must wonder if the average user truly needs such advanced capabilities. Only time will tell if Thunderbolt 5 becomes a mainstream necessity or remains a luxury for the few.

	THUNDERBOLT 5	THUNDERBOLT 4	USB4	USB 3.2
Data transfer rate	Up to 120 Gbps	Up to 80 Gbps	Minimum of 20 Gbps, 40 Gbps is optional.120 Gbps is optional with USB4 Version 2.0	5 Gbps (Gen 1), 10 Gbps (Gen 2), or 20 Gbps (Gen 2×2)
PC video requirements	Dual 6K	Dual 4K	One monitor	One monitor
PC data requirements*	PCIe: 64Gbps USB 3: 10Gbps**	PCIe: 32Gbps USB 3: 10Gbps	USB 3: 10Gbps	USB 3: 5Gbps
Required PC charging on at least one computer port	Required up to 140 W, available up to 240 W	Required up to 100 W, available up to 140 W	Available up to 240 W	Available up to 240 W
Required PC wake	Yes	Yes	No	No
Minimum PC port power for accessories	15 W	15 W	7.5 W	4.5 W
PC to PC networking*	64Gbps	32Gbps	N/A	N/A
Intel VT-d-based DMA protection required	Yes	Yes	No	No

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